Gravity: Why What Goes Up, Must Come Down

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Everything we know is governed by four physical forces, but there is only one of them that is immediately obvious - gravity. Although ludicrously weak compared to the other forces (a tiny magnet can hold up a piece of metal against the gravitational attraction of the whole Earth), gravity permeates our everyday life and being. We begin with humanity's earliest ideas of how we remain stuck to the ground - a significant consideration when you realize that despite the myths, educated people have known the Earth was a sphere since the time of the Ancient Greeks.

Along the way we'll see how the Arabic scholars explained the force of gravity, why Galileo didn't need to drop balls off the tower of Pisa, exactly how Newton came to his conclusions and why he refused to 'frame hypotheses' about gravity.

We will explore the concept of action at a distance, and see how Einstein transformed our understanding of gravitation with general relativity and consider whether the graviton will ever be discovered. We will see how birds, bees and rockets seem to defy gravity, and whether the concept of anti-gravity can move from pure science fiction to possible fact.

Gravity never fails to fascinate...

More Information
AuthorBrian Clegg
PublisherDuckworth Overlook
PlaceLondon
Year2013
ISBN9780715644072
BindingPaperback
ConditionVery Good
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